Rookie wide receiver Demaryius Thomas and tight end Daniel Graham are both participating practice Tuesday as the Broncos begin preparations for the season opener Sunday at Jacksonville.

Both players missed substantial time in the preseason with injuries. Thomas, the team’s first round draft pick, reinjured his surgically repaired left foot on Aug. 7 in the scrimmage at Invesco Field. He did not play in any of the preseason games.

Graham injured his ribs early in the first quarter of the team’s first preseason game at Cincinnati and has not practiced since.